package main.java.api;

/*
 * StringBuilder和String的相互转换
 *
 * StringBuilder -- String
 * 		public String toString():通过toString()就可以实现把StringBuilder转成String
 *
 * String -- StringBuilder
 * 		StringBuilder(String str):通过构造方法就可以实现把String转成StringBuilder
 */

public class StringBuilderDemo3 {
    public static void main(String[] args) {
        //StringBuilder -- String
		/*
		StringBuilder sb = new StringBuilder();
		sb.append("hello").append("world");

		String s = sb.toString();
		System.out.println(s);
		*/

        //String -- StringBuilder
        String s = "helloworld";
        StringBuilder sb = new StringBuilder(s);
        System.out.println(sb);
    }
}
